Home / 51,813.36-77,721.12-16,756.56

Finding the Fourth Proportional to 51,813.36, 77,721.12 and 16,756.56

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Solution

The fourth proportional to 51,813.36, 77,721.12 and 16,756.56 is: 25,135.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,813.36 : 77,721.12 = 16,756.56 : x
  2. Step 2: Convert to fraction form
    51,813.36/77,721.12 = 16,756.56/x
  3. Step 3: Cross multiply
    51,813.36x = 77,721.12 × 16,756.56
  4. Step 4: Simplify right side
    51,813.36x = 1,302,338,610.55
  5. Step 5: Solve for x
    x = 1,302,338,610.55/51,813.36
  6. Step 6: Final answer
    x = 25,135.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.